22132100403220 has 36 divisors (see below), whose sum is σ = 47487332046420. Its totient is φ = 8664481842688.

The previous prime is 22132100403209. The next prime is 22132100403223. The reversal of 22132100403220 is 2230400123122.

It can be written as a sum of positive squares in 2 ways, for example, as 6520893388816 + 15611207014404 = 2553604^2 + 3951102^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22132100403191 and 22132100403200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22132100403223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 250432285 + ... + 250520644.

It is an arithmetic number, because the mean of its divisors is an integer number (1319092556845).

Almost surely, 2^{22132100403220} is an apocalyptic number.

22132100403220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22132100403220 is an abundant number, since it is smaller than the sum of its proper divisors (25355231643200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22132100403220 is a wasteful number, since it uses less digits than its factorization.

22132100403220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500953032 (or 500952983 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 22132100403220 its reverse (2230400123122), we get a palindrome (24362500526342).

The spelling of 22132100403220 in words is "twenty-two trillion, one hundred thirty-two billion, one hundred million, four hundred three thousand, two hundred twenty".